souther



(No Model.)

O. H. SOUTHER & J. E. CHAPMAN.

SGGW. No. 459,420. Patented Sept. 15, 1891.

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WIT'NEEIEEE- INVENTU.

UNITED STATES PA'TENT OFFICE.

CHARLES I-I. SOUTHER, OF BOSTON, AND JAMES E. OIIAPMAN, OF NEEDHAM,MASSACHUSETTS; SAID OHAPMAN ASSIGNOR T SAID SOUTHER.

SCOW.

SPECIFICATION forming part of .Letters Patent No. 459,420,datedSeptember 15, 1891.

Application filed May 31, 1890. Serial No. 358,776. (No model.)

T0 all whom it may concern:

Be it known that we, QHARLEs H. SoUrHER, of Boston, in the county ofSnffolk and State of Massachusetts, and JAMES E. CHAPMAN, of

Needham, in the county of Norfolk, in said State, citizens of the UnitedStates, have invented a new and useful Improvement in Scows, of whichthe following is a full, clear, and exact description, reference beingh'ad to ro the accompanying drawings, forming a part of thisspecification,in explaining its nature.

The invention relates to a scow for the transportation of large bucketsfor transferring earth or other material from a dredge or similarmachine. Buckets employed for this purpose are, when loaded withmaterial, very heavy, and often when unloaded are of Very considerableweight, and in the act of filling or placin g them material very oftenescapes from zo them into the scow. They are gen erally filled when inposition in the scow, but not necessarily so, and they are generallyremoved from the scow by a crane to some other position, and emptied byreleasing` their hinged 2 5 bottoms. It is therefore necessary toprovide in the scow proper suitable supports for the buckets to restupon and receptacles or compartinents to receive and hold the materialwhich escapes from the bnckets. It is also necessary that the scow-spaceand the buckets be so shaped that the buckets may be easily placed andremoved without injury to each other orthe scow; and we have obtainedthese ends by forming or providing the scow 3 5 with a bucket-holdingsection or compartnient, an open-work or grated bucket-support, and oneor more Wells or receiving-chambers beneath the-grating to receive thematerial which accidentally escapes from the buckets or dredge in theact of loading, which preferably are closed normally by covers in thebottom of the scow arranged to be opened when desired to permit thecontentsof such compartments to escape; by forming the buckets with twosides which are inclined from the top downward and placing the bucketsin the scow so that these inclined sections are next each other when inline, thereby insuring an entrance-space for the bottom of each bucketwhich shall be wider than the bottom of the bucket and permit of itsentering such space as it comes to rest withot injury to itself, thescoW,or the adjacentbuckets, and by partially filling the scow withwater to a point above the grating,so that the water shall act as acushion in receiving the iirst blow of the bucket as it is lowered intoposition upon the grating. i

Referrin g to the d'rawings, Figurel is a view in longitudinal central,section of the scow with the buckets in place therein. Fig. 2 is a planview thereof. Fig. 3 is a view in plan of the scow inverted. Fig. 4 is asection taken through the scow with the buckets in place, and Fig is asection through the scow with the buckets removed and with the gates tothe Wells or compartments beneath the bucket-supporting' gratingproperly opened.

A represents the scow; It has any desired number of water-tightcompartments. It has 7'o two sides a, which form a large wellorbncketholding space a'. I-Iorizontally across this space extends thegrating az, upon which the bucket B rests. The grating may be supportedby its edges only or at its center also by the section as of the scow.Beneath the grating are one or more Wells or receptacles' (L4, accordingto the shape of the scow, which well or wells have openings afi, throughwhich their contents are discharged through the bot- So tom of thescoiv, the openings being closed normally by the hinged covers a. Thebuckets B are arranged in lines across the scow, their inclined sides inline, as represented in Fig. 1. The scow contains water to about line c,which, being above the grating, acts as acushion in deadening the blowof the bucket as it is lowered to place upon the grating.

In use the buckets are filled by the dredger, excavator, or elevatorwith the material go dredged, excavated, or elevated, and any escapingfrom the dredge, excavator, elevator, or bucket into the compartnient ofthe scow passes through the interstices of the grating into the ,cavitybelow, and this prevents the waste from collecting upon the grating -andinterfering with the proper level resting of the buokets upon it. Thebuckets having been filled, the scow is transferred to a dischargingposition and the buckets then removed from' m0 the scow,their contentsdischarged, and then returned empty to the scow to be again transferredwith it to the dredger or elevator and again filled.

It will be seen that by constructing the scow with the section a3.greater buoyancy and stability are given.

Having thus fully described our invention, we claim and desire to secureby Letters Patent of the United States- 1. An im proved scow for thetransportation of buckets of the character specified, provided with oneor more large walled compartments extending across the scow from side toside, and the bottom of which compartment is provided with a grating,upon which the buckets rest and in which are openings of suflicient sizeto permit the escape of material which does not enter the buckets orwhich may escape t-herefrom, as and for the purposes dei scribed.

in said compartnient and upon which the buckets rest, and the centralgrating-support as, as and for the purposes described.

4. A scow for carrying buckets for holding material in line, whichbuckets have two straight sides and two inclined sides provided with oneor more compartments for holding said buckets in line, each of whichcompartments has two of its sides inclined to substantially theinclination of the inclined sides of the bucket and two of its sidesstraight, as and for the purposes described.

5. A scow for the transportation of dredged material in buckets havingone or more walled compartments open at the top and containing orholding water, and a support in each of said compartments upon which thebnckets rest, placed in the water below the upper surface thereof,whereby a body or cushion of water to receive the impact'of the bucketsupon their downward movement to the supports is provided above thesurface of the supports and the supports thereby protected from injury,substantially as described.

6.' A scow for the transportation of dredged material, comprising a boathaving a number of large compartments extending across the same of asize to receive a given number of buckets, a grated or open-work bottomfor each compartment, and removable buckets for holding dredgedmaterial, each of which has two of its sides straight and two inclined,whereby its bottom is made smaller than its top, and it is thereby moreeasily and readily inserted into its holding-space in the compartment,and which buckets are arranged in lines or rows in said compartinents,as and for the purposes described. o

CHARLES H. SOUTHER. JAMES E. CHAPMAN.

Witnesses:

F. F. RAYMOND, 2d, J. M. DoLAN.

